Robert H Fletcher

This inventor holds 10 USPTO granted patents. Top assignees: Advantage Lift Systems, Inc., Andvantage Lift Systems, Inc., Other. Active years: 1989-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Robert H Fletcher. Retrieved from https://idiyas.com/inventor/robert-h-fletcher

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 9

Forward Citations = 167(Granted Patents)

Location History:

Annandale, VA (US) (1989)
Glenwood, NJ (US) (1992 - 1994)
San Diego, CA (US) (1995 - 1999)

Company Filing History:

7 out of 7

Advantage Lift Systems, Inc.

patents

1 out of 1

Andvantage Lift Systems, Inc.

patent

2 out of 834,513

Other

patents

Years Active: 1989-1999

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5860491 - Hydraulic lift system and method for retrofitting (1999-01-19),

2. 5740886 - Method of retrofit of in-ground automotive lift system (1998-04-21),

3. 5573083 - In-ground automotive lift system (1996-11-12),

4. 5501296 - Dual post single screw automotive screw lift system (1996-03-26),

5. 5404968 - Automotive screw lift system with interchangeable components (1995-04-11),

6. D343488 - Automotive lift (1994-01-18),

7. 5199686 - Non-continuous base ground level automotive lift system (1993-04-06),

8. 5190122 - Safety interlock system (1993-03-02),

9. 5096159 - Automotive lift system (1992-03-17),

10. 4870405 - Object monitoring and alarm device (1989-09-26),

Title: The Innovative Contributions of Robert H. Fletcher

Introduction

Robert H. Fletcher is a notable inventor based in San Diego, California, recognized for his significant contributions to hydraulic lift systems. With a total of 10 patents to his name, Fletcher has developed innovative solutions that enhance the functionality and efficiency of existing lift systems.

Latest Patents

Fletcher's latest patents include a hydraulic lift system and a method for retrofitting existing systems. The hydraulic lift system is designed to operate at high pressure and low volume, allowing for effective retrofitting of low pressure high volume systems. This innovative design includes a high pressure ram that moves a plunger axially within a pre-existing casing, eliminating the need for additional reinforcement. The retrofitting method involves removing the old structure, cutting a hole in the casing, and installing a new hydraulic cylinder and associated components. This system can be adapted for various applications, including automotive lifts and elevators.

Career Highlights

Throughout his career, Robert H. Fletcher has worked with several companies, including Advantage Lift Systems, Inc. His experience in the industry has allowed him to develop practical solutions that address common challenges faced by hydraulic lift systems.

Collaborations

Fletcher has collaborated with notable individuals such as Glenn D. Felpel and James Myers, contributing to the advancement of hydraulic technology through teamwork and shared expertise.

Conclusion

Robert H. Fletcher's innovative work in hydraulic lift systems showcases his dedication to improving existing technologies. His patents reflect a commitment to enhancing efficiency and functionality in various applications.

Profile summary based on public USPTO records.

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]